
I don't know if that's true but I know for sure from the local people some very intriguing facts about the cave. During the last twenty years or so a couple of floods threw inside the cave an enormous amount of wood material as it was stored up the river. I don't remember the exact numbers but by the time I figured that it was enough to build about four houses with it. Including a horse with a chariot... Well, not a splinter came out on the other end - where the water appears again - about 500 meters down the gorge.
Back then it was impossible to go inside the cave and when a tunnel was dug nothing was found in the cave hall, which itself is enormous. It can easily hold three 10-story buildings inside.
All this just adds to the magic of the place and can not stop me from thinking that even bigger galleries lie undiscovered somewhere in the Trigrad's beautiful hills.